Daniel -collins



tnte tatw DANIEL 'COLLINS, OF GIRARD, ALABAMA.

Letters Patent No. 94,566, datecl September 7, 1869.

IMPRVEMENT IN BALANCED VALVES:

The Schedule referred to in these Letters Patent. aid making part cf the same.

To all 'wlwm it may concern:

Be it known that I, DANIEL GOLLINS, of Girard, in the county of Russell, and State of Alabama, have in- 'Yented a new and improved Balance-Valve; and I do hereby declare'that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the aecompanying'drawings, forming part of this specification.

The object of this invention is to providean improved and simple arrangement of balance-Valves for steain-engines.

The invention consists in an ailrangement of liftvalves in steam-ways, sunlounding and halancing the sides, and with the upper ends working into chalnbers above the steam-ways, to which chambers the steam is admitted through holes in'the said valves as soon as they are lifted ofl' their seats, and from which it exhausts With the regular exhaust of the engine, all as hereinafter niore fully specified.

The drawing represents a steam-ehest in sectional elevation with myimproved steam and exhaust-valves, also a sectional view of the steam-cylinder.

'A represents the steam-ohest;

B, the steam-valve; and

C',l the exhaust.

D is the live-steam way, and

E, the exhaust.

F, the live-steam port, and

G G', the eXhaust-port.

H, the valve-scats.

I represents ('hambers, arranged above the valveseats, into which the `i'alves work, through the lower walls K thereof, snugly.

These chamhers are larger than the valves below, and the valres are enlarged therein, to com pensate for the area of the stems L, by which the valves are worked, and which rlse up through the top of the steam-Ghost.

These valves have holcs, M, leading from bottom to top, so that as soon as they are raised off their seats, and the steam is admitted under them, it passes through these holes into the chambers I, and presses equall y upon both ends. When the cylinder exhausts, the exhanst for these chambers is direct with the same.

The said valves are balanced lat-erally in the steamways ED, by the steam being' admitted on all sides.

These valves may be of any preferred Shape.

Havng thus deseri'oed my invention,

I claim as new, and desire to secure by Letters Patent- The arrangement with the lift-valves B O, having longitndinal passages, M, of the steam-ways E D, admitting the steam to surround them, and the chambers I, all snbst-antially as speoified.V

DANIEL COLLINS.

Witnesses:

F. G. S'rEWAn'r, J. M. 'Dnxsolm i 

